If you have a semi-circle with a diameter of 8.6ft, what's the semi-circles area? Use the formula $\pi r^(2)$

Answers

Answer 1

Answer: So,

The diameter is 8.6ft. We need to convert to radius.

2 radius = 1 diameter

8.6/2 = 4.3 ft.

$\pi r{2}$

$\pi 4.3^(2)$

$\pi 18.49$

3.14(18.49)

58.0586ft.²

Divide by 2 (semi-circle)
29.0293ft.²

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Change to an improper fraction 4 2/3=

It is estimated that there are 1.2×1057 atoms in the Sun. The number of atoms in the rest of the Solar System is approximately 1.2×1056. About how many more atoms exist in the Sun than in the rest of the Solar System? Drag numbers to complete the answer in scientific notation.

Answers

Answer:

1.08 * 10^57

Step-by-step explanation:

Given that:

Number of atoms in the sun = 1.2 * 10^57

Number of atoms in the rest of the solar system = 1.2 * 10^56

About how many more atoms exist in the Sun than in the rest of the Solar System?

Subtract the number of atoms in solar system from number of atoms in sun

(Number of atoms in sun - number of atoms in rest of the solar system)

(1.2 * 10^57) - (1.2 * 10^56)

= 1.08 * 10^57 (using calculator)

Which figure could be rotated the least amount of degrees to be carried onto itself

Answers

Regular octagon.
Regular shapes take the least amount of degrees to rotate on themselves. However, out of all of them, the octagon has the most sides and thus also the least amount of degrees in rotating.

Hope this helps :)

A circle could.
Among the regular polygons, it's the one with the most sides.

How do you round 5 1/8 to the nearest whole number

Answers

you would round this number to 5. this is because the fraction is closest to the whole number five. if the fraction would have been 5 7/8, you would round it to 6.
i hope this helped!!!

I would round to 5 because its value is closer to 5 than to 6.

Solve the inequality
2w-3>14

Answers

Try to follow my steps:

1). Copy the problem:

2w - 3 > 14

2). Add 3 to each side:

2w > 17

3). Divide each side by 2 :

w > 8.5

$2w-3 > 14\ \ \ \ /+3\n\n2w > 17\ \ \ \ /:2\n\nw > 8.5\n\nw\in(8.5;\ \infty)$

Solve this equation :

2/3q=18

Answers

The answer to your question is q = 27.

Explain why the following triangle cannot exist. Note that no angle measure are known.

Answers

The triangle does not exist because the sum of the lengths of any two sides of a triangle is greater than the length of the third side.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

In the given triangle the smaller sides are 8 and 17.

The larger side length is 26.

The sum of the two sides of a triangle must be greater than the third side length to make the triangle exist.

8+17 is 25

25<26

Hence, the triangle does not exist because the sum of the lengths of any two sides of a triangle is greater than the length of the third side.

To learn more on Triangles click:

brainly.com/question/2773823

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In all triangles, the two smaller sides have to be greater than the largest side, that is not the case in this triangle.

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